Pneumatic spring and shock-absorber for motor-vehicles.



PATENTBD DEC. 3, 1907.

A. L. MUREN, PNEUMATIC SPRING AND SHOCK ABSORBER FOR MOTOR VEHICLES.

APPLICATION FILED OCT. 18, 1906.

2 SHEETS-SHEET 1.

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PATENTED DEC. 3, 1907.

A. L. MUREN. PNEUMATIC SPRING AND SHOCK ABSORBER FOR MOTOR VEHI GLES.

APPLICATION FILED 0CT.18, 1900 2 SHEETS-SHEET 2.

dz, ZZaW To all whom 'tt may concern:

. Be it known that I, ALBERT citizenof the United States of America,residin in Belleville, in the county of St: Clair ALBERT L. MUREN, OFBELLEVILLE, ILLINOIS. I

PNEUMATIC SPRIHG AND SHOCK-ABSORBI SB EOR MOTOR-VEHICLES.

Specification of Letters Patent. Application filed October 18. 1906.Serial No. 839.482.

' Patented Dec. 3, 19 07.

L. MUREN, a

and tate of lllinois, have invented certain -new and useful ImprovementsinPneumatic Springs and Shock-Absorbers for Motor-Vs hicles, ofwhich'thefollowing is a full, clear,

and exact description, reference being had to the accom anying.drawings, forming part of this spec" cation.

- Myfinyention relates to pneumatic devices for use m motor vehicles orother forms of [vehicles to avoid jarring of the vehicleframe M sate for'shoc irame: or -body when the vehicle wheels strike agams t anobstruction encountered ,ciated with or body and'ggeldingly overcome orco en- -'due to rebound of the ve 'cle or move intoruts-or depressionsin the road over which they are. traveling.

' I-' an elevation of portions of a oamd wheel and frame and mypneumatic and shock absorberasso- I IIII-,---Fig. I; FigrIII-isan'enlarged view v partly memb in verticalsectioii and partly inelevation of the s ring vand. shock absorber ers. is a horizontalsection taken on lin FigrllI. I

A designates a vehicle 1ground wheel, B an axle mounted said w eel, Cpart of'the frame of the vehicle,' and D an ordinary sprindg connectedto said frame. I 1- esignates a pedestal mounted u axle B and providedatits upper en head- 2.

I 3 is an upper compression box or member that is provided with on themgly connected to the spring D by shac es 5- .or other suitable means.The compression box isiclosed at its-top and open at its bot- .tom, and]the walls of said box which surround thejhead of the pedestal 1 areloosely 'fittedto said pedestal so as'to permit vertical .movement ofthe boxrelative to the station the upper compression boxand seated i onthe head of the pedestal 1 to serve when inflated as a yielding supportfor said u per compression box. The pneumatic. cus on is provided with adepending neck 7 that extends throughthe head of the pedestal and isparts; ,'Fig. II is an .enlarged, verticalc'ross section taken on linepreferably made of equipped ,pump'may be a .with a a detachable wall 4"forming a part thereofand which is. do end hlcle frame an runnin 'gearequipped with a valve nipple 8 to which a pump maybe applied for thepurpose of orcmg air mto sald cushion to'iinflate it in order that thedesired spring action may be acquired. For the protection of thepneumatic cushion which is preferably made of rubber, I incjase saidcushion in a flexible casing 9, which may be of. leather or othersuitable material, which obviates abrasion of the cu hionb the partssurroundin it.

t 10 desi ates anger rods suspends from the vehic e frame 0.. 11 is alower compression member supported by said hanger rods soas to projectupwardlyand located beneath the axle B and the main pedestal 1'. Themainpedestal is provided with a dependresistancemember or box 1 that isslidab y fitted to said lower compression member and provided withadetachable wall 1 The resistance member I? is closed at its to and openat its bottom inorder that its wal may operate slidably pression memberwhich they surround.

12 desi nates a pneumatic shockiabsorbing the lower com ression member11 and the upper end of e resistance-member 1%, this cushionbeing in theform of an inflatable bag rubber. The cushion is provided with a neckexterior of the resistance member 1 and is witha valve nipple 14 towhich a plied for the purpose of "inflating said cus 'on, For thepurpose of preventing abrasion of the cushion it is preferably incasedwithin a flexible casing 15.

In the ractical use of my pneumatic spring an shock absorber, the

cushion affords cushioning action or the ve (1 other partssupported bythe of the vehicle to relieve such parts 0 jar to the same intent aspneumatic agalnst the lower com-- 13 that extends to. the,-

cushion t at is located between the top of neumatic or other yieldingvehicle wheel tires come n monly used, and the pneumatic cushion its;location furnishes all of the requisite action of the character namedwithout liability of'wear or injury such as the wheel tires are subjectto. v serves to yieldin incident to a slid the vehicle partsf'su portedbKtherunning gear, as a result 0 which t ly overcome the rebound cushionis compressed.

Attention is called to the fact that dueto the upper compressionresistance member 1 being provided with The shock absorbing cushion endownward movement of Y member 3 and lower e pneumatic detachable wallsthe pneumatic shock absorbing cushions may be readily withdrawn from theboxes within which they are seated or for repairs when needed.

I claim 1. In a vehiole,-tl1e combination with an axle and frame, of anupwardly projecting compression member suspended beneath said axle fromsaid frame, a resistance member beneath said axle above said compressionand replaced bv other corresponding parts,

member and slidingly connected therewith,

and a pneumatic shock absorbingcushion located between said compressionmember and said resistance member; said resistance member being of boxshape and having a detachable wall, substantially as set forth.

2. In a vehicle, thecombination with an axle and frame, of a pedestalcarried by said' axle and having a head above the axle, and a resistancemember below the axle, an upper pneumatic cushion mounted on said head,an upper compression member resting on said upper pneumatic cushion andha ving connection with said frame, a lower upwardly projectingcompression member suspended from said frame and located beneathsaidaxle, and a lower pneumat cshgck absorbing cushion located between saidlower com-' pression member and the resistance member of said pedestal,substantiallv asset forth.

3. The combination, with a frame, an axle,

and a spring located between the fraine and the axle; of a dependingupper compre box, means whereby the upper compression box is suspendedfrom the spring, an upwardlyprojecting lower compression box,

means whereby the lower compression box is suspended from the frame, apedestal mounted upon the axle and having. an upwardl projecting, head,with which the upper compression box is slidingly connected, and adepending resistance box with which the lower compression box isslidinglv connected, a pneumatic cushion located between the head andthe upper end of the upper compression chamber, and a pneumatic cushionlocated between the lower compression box and the upper end of theresistance box.

4. The combination, with a frame, an axle, and a spring located betweenthe frame and the axle; of a (.lepending upper compression box, meanswhereby the upper compression lower compression box and the "upper endof.

the resistance box.

ALBE T L. In presence of H. L. ML'REX, EnMUxn BURKE.

MUREN.

